diff --git a/6.6/target/linux/mediatek/dts/mt7981b-zbt-z8109ax-128.dts b/6.6/target/linux/mediatek/dts/mt7981b-zbt-z8109ax-128m.dts
similarity index 100%
rename from 6.6/target/linux/mediatek/dts/mt7981b-zbt-z8109ax-128.dts
rename to 6.6/target/linux/mediatek/dts/mt7981b-zbt-z8109ax-128m.dts
diff --git a/6.6/target/linux/mediatek/dts/mt7981b-zbt-z8109ax-512.dts b/6.6/target/linux/mediatek/dts/mt7981b-zbt-z8109ax-512m.dts
similarity index 100%
rename from 6.6/target/linux/mediatek/dts/mt7981b-zbt-z8109ax-512.dts
rename to 6.6/target/linux/mediatek/dts/mt7981b-zbt-z8109ax-512m.dts